Episode
How to Be a Double Unicorn, with John Urschel | Better in Person
Freakonomics Radio · Sep 16, 2026 · 33 min
He was thriving in the N.F.L., but then he decided to focus on mathematics — a subject he now teaches at M.I.T. John walks Stephen Dubner through the whole story, teaches him some blocking techniques, and explains why some infinities are bigger than others. If you'd like to see the video version of Better in Person, you can watch it on YouTube or Apple Podcasts.